have a jive 80lv v9 brand spanking new

perfect for a t-rex 500 or similar , should work on heli up to 500mm blades for acrobatic flying on 6s

best governer on the market , self adjusting timing, just set what mode u want and that is it , detect performance of battery before start and give max power to motor on that data in mode 4 so always max performance without killing batteries, mode 11 constant rpm no matter what condition of battery as long as battery can keep up, inbuilt features to protect esc and motor if something goes wrong so no more burning machines.

for planes and cars best power management on the market

5 amp constant and 10 amp peak in bec. protect you from a brown out if using fbl system or hi amp servos
possible to use slave cable to receiver for max current to servos.

only WR  bec can mach this and a bec like that is 80 dollar alone

give me a fair price

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no need for a quality esc here?